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1) Let X1, X2, ..., Xn be i.i.d. samples from a distribution X with mean / and standard deviation o. Let At = 17 X1

1) Let X1, X2, ..., Xn be i.i.d. samples from a distribution X with mean / and standard deviation o. Let At = 17 X1 + X2+ ...+ Xn n be an estimator of . Find the risk of p. 1702 O + 256/2 n O 28902 + 16/2 n O 28902 + 256/2 n 1702 O + 16/2 n

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